PERSISTÊNCIA DO DUCTO ARTERIOSO EM CÃO

• DOI: https://doi.org/10.22533/at.ed.0012427122

• Palavras-chave: cardiopatia congênita, cães, alteração vascular

• Keywords: congenital heart disease, dogs, vascular alteration

• Abstract: Congenital heart diseases are an important diagnosis in the small animal clinic, with patent ductus arteriosus (PDA) being the most common, representing 25 to 30% of cases and having the highest prevalence among purebred females. The ductus arteriosus is a vascular structure originating from the sixth left aortic arch, connecting the pulmonary artery to the aorta in the fetal phase and, after birth, its natural occlusion occurs. Failure to close defines the congenital heart disease called persistent ductus arteriosus (PDA). The PDA presents two forms of hemodynamics, the classic one characterized by a Shunt with blood flow from left to right and the reverse PDA with flow characteristics from right to left. The definitive diagnosis of this pathology is made through imaging tests, and echodopplercardiography is the most indicated. The appropriate treatment in cases of classic PDA is surgical, being performed the occlusion of the duct, thus preventing the passage of blood flow. The prognosis in surgically treated animals is satisfactory in the long term. In cases of reverse PDA, only palliative treatment should be performed. The aim of this work was to report a clinical case of persistent ductus arteriosus.